Automatic swing detection
Built-in accelerometer sampled at 50 Hz. Detects forehand and backhand strikes without you doing anything.
Apple Watch app
Ch'ti Pong
Track every swing of your table tennis sessions, right from your wrist.
Features
Live score counter
Two big tap zones for you and your opponent. Long-press to undo. No fiddly menus during play.
Apple Watch native
Runs entirely on your Watch. No iPhone needed during the game. Heart rate and calories tracked via HealthKit.
Privacy by design
All session data stays on your Watch. No analytics, no tracking, no cloud, no account required.
How it works
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1
Tap Start
A table tennis workout session begins. The timer runs, swings start being counted.
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2
Play
Swipe between the Stats page and the Score page. Tap to add a point whenever you want.
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3
Tap Stop
Your session is saved automatically. Review your history and watch your peak acceleration improve over time.
Privacy Policy
Ch'ti Pong does not collect, transmit or share any personal data. All your session data (duration, swing count, peak acceleration, score) is stored locally on your Apple Watch in a JSON file inside the app sandbox.
The app requests access to HealthKit only to start and end a workout session and to read your heart rate and active energy during the session. This data is used in real-time and saved by HealthKit, not by Ch'ti Pong. You can revoke this access at any time in the Watch Settings.
The app requests access to motion data (accelerometer) only during an active session, to detect swings. No motion data is stored or transmitted.
No third-party SDK is bundled in the app. No analytics, no crash reporting, no ads. Deleting the app deletes all data.
Support
Need help, found a bug, want a feature? Drop us an email — we read everything.
FAQ
Does Ch'ti Pong require an iPhone?
No. The app runs standalone on your Apple Watch. An iPhone is only needed once to install the app from the App Store.
Which Apple Watch models are supported?
Any Apple Watch running watchOS 26.5 or later (Series 6+, SE 2+, Ultra 1+).
Is my data sent to a server?
No. All data stays on your Watch. There is no account, no cloud sync, no analytics.
How accurate is swing detection?
The algorithm uses a 3g peak threshold and a 0.25s cooldown. Calibrated on real sessions. Reliable for clear strikes; gentle warm-up swings may be missed by design.